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The Subaru WRX is a popular choice among car enthusiasts for its performance and tuning potential. One of the key components that can significantly enhance the engine’s efficiency is the throttle body. Upgrading the throttle body can lead to improved airflow, better throttle response, and increased power output. In this article, we will compare two popular throttle body upgrades for the Subaru WRX: GrimmSpeed and APS. We will discuss the power gains, costs, and overall benefits of each option.
Understanding Throttle Body Upgrades
A throttle body is a critical component of the air intake system in any vehicle. It regulates the amount of air that enters the engine, which directly affects performance. Upgrading to a larger or more efficient throttle body can improve airflow, resulting in better combustion and increased horsepower. For Subaru WRX owners, selecting the right throttle body upgrade is essential for maximizing performance.
GrimmSpeed Throttle Body Upgrade
GrimmSpeed is known for producing high-quality performance parts for various vehicles, including the Subaru WRX. Their throttle body upgrade is designed to provide a significant increase in airflow while maintaining optimal performance.
Power Gains
The GrimmSpeed throttle body upgrade typically offers power gains of around 10-15 horsepower, depending on the supporting modifications and tuning. This increase is primarily due to the larger diameter and improved design that allows for better airflow.
Cost
The cost of the GrimmSpeed throttle body upgrade generally ranges from $300 to $400. This price may vary based on the retailer and any additional components that may be required for installation.
APS Throttle Body Upgrade
APS (Advanced Performance Systems) is another reputable brand in the performance automotive industry. Their throttle body upgrade is engineered to enhance airflow and improve engine response, making it a popular choice among Subaru WRX enthusiasts.
Power Gains
The APS throttle body upgrade can provide power gains of approximately 15-20 horsepower, depending on the specific setup and tuning. The design focuses on maximizing airflow efficiency, which contributes to improved engine performance.
Cost
The price for the APS throttle body upgrade typically falls between $400 and $500. Like the GrimmSpeed option, the final cost may vary based on installation needs and additional parts.
Comparative Analysis
When comparing the GrimmSpeed and APS throttle body upgrades, several factors come into play, including power gains, costs, and overall performance enhancements.
- Power Gains: The APS throttle body generally offers slightly higher power gains compared to GrimmSpeed.
- Cost: GrimmSpeed is more budget-friendly, while APS is priced higher due to its performance capabilities.
- Installation: Both upgrades require similar installation processes, but additional parts may be needed for optimal performance.
Conclusion
Choosing between the GrimmSpeed and APS throttle body upgrades for your Subaru WRX ultimately depends on your performance goals and budget. If you are looking for a cost-effective solution with decent power gains, GrimmSpeed is a solid choice. On the other hand, if you are willing to invest more for higher power output and enhanced performance, the APS throttle body upgrade may be the better option. Regardless of your choice, both upgrades can significantly improve your WRX’s performance and driving experience.